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Transcription and Regulation

Transcription and Regulation
Transcription factors are

TATA boxes
CATT boxes
proteins which bind to DNA and regulate transcription
promoters

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Transcription and Regulation
The binding of lac repressor to DNA could be considered to be analogous to

mixed-type inhibition of an enzyme
uncompetitive inhibition of an enzyme
allosteric effects in enzyme regulation
competitive inhibition of an enzyme

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Transcription and Regulation
Immediately after transcription

a poly adenylation signal is added
both (a) and (b)
a methylated guanine cap is added to the 31 end of the transcript
a methylated guanine cap is added to the 51 end of the transcript

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Transcription and Regulation
In prokaryotes, transcription is

terminated by a protein called rho
terminated by a start codon
terminated by the stop codon
terminated by a poly A sequence

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Transcription and Regulation
Transcription begins

none of these
upstream from the start codon
downstream from the start codon
at the start codon

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Transcription and Regulation
Transcription results in

an amino acid chain
Okazaki fragments
complementary DNA
messenger RNA

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